I am on the board of a homeowner's association and we have used CRC Concrete Raising and Repair on several occasions for different jobs. We will be using them again in the future to finish a sidewalk leveling job, and to install new expansion joints in our sidewalks. Our dealings with them have been terrific. They are very professional people, and they have the art of presentation down to a science. For example, on the latest job they used an IPAD and GoogleEarth to show our Board exactly where the problems were in our five block development. That was extremely helpful and informative. The way they work is fascinating. I watched them this last time as they filled in under a driveway that was sinking. We thought it was a major hollowing-out problem, but it actually took very little fill to correct the problem. They also leveled out a large part of our sidewalk structures and that was super-interesting to watch also. These guys really know what they are doing. They did a great job on this part of the job too, which was important to reduce raised edges which could cause tripping hazards. I would absolutely recommend CRC Concrete Raising and Repair to everyone needing this kind of work. You could not ask for better, more knowledgeable people to do what it takes!